---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: demoappv10
    version: v1.0
  name: demoappv10
spec:
  progressDeadlineSeconds: 600
  replicas: 3
  selector:
    matchLabels:
      app: demoapp
      version: v1.0
  template:
    metadata:
      labels:
        app: demoapp
        version: v1.0
    spec:
      containers:
      - image: ikubernetes/demoapp:v1.0
        imagePullPolicy: IfNotPresent
        name: demoapp
        env:
        - name: "PORT"
          value: "8080"
        ports:
        - containerPort: 8080
          name: web
          protocol: TCP
        #resources:
        ##  limits:
        #    cpu: 10m

---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: demoappv11
    version: v1.1
  name: demoappv11
spec:
  progressDeadlineSeconds: 600
  replicas: 2
  selector:
    matchLabels:
      app: demoapp
      version: v1.1
  template:
    metadata:
      labels:
        app: demoapp
        version: v1.1
    spec:
      containers:
      - image: registry.cn-shenzhen.aliyuncs.com/lavamusic/public:demoapp-v1.1
        imagePullPolicy: IfNotPresent
        name: demoapp
        env:
        - name: "PORT"
          value: "8080"
        ports:
        - containerPort: 8080
          name: web
          protocol: TCP
        resources:
          limits:
            cpu: 50m

---
apiVersion: v1
kind: Service
metadata:
  name: demoapp
spec:
  ports:
    - name: http
      port: 8080
      protocol: TCP
      targetPort: 8080
  selector:
    app: demoapp
  type: ClusterIP

apiVersion: apps/v1
kind: Deployment
metadata:
  name: proxy
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  selector:
    matchLabels:
      app: proxy
  template:
    metadata:
      labels:
        app: proxy
    spec:
      containers:
        - env:
          - name: PROXYURL
            value: http://demoapp:8080
          image: registry.cn-shenzhen.aliyuncs.com/lavamusic/public:proxy-v0.1.1
          imagePullPolicy: IfNotPresent
          name: proxy
          ports:
            - containerPort: 8080
              name: web
              protocol: TCP
          resources:
            limits:
              cpu: 50m
---
apiVersion: v1
kind: Service
metadata:
  name: proxy
spec:
  ports:
    - name: http-80
      port: 80
      protocol: TCP
      targetPort: 8080
  selector:
    app: proxy

apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: demoapp
spec:
  hosts:
  - demoapp
  http:
  - name: weight-based-routing
    route:
    - destination:
        host: demoapp
        subset: v10
      weight: 80
    - destination:
        host: demoapp
        subset: v11
      weight: 20

apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
  name: demoapp
spec:
  host: demoapp
  subsets:
  - name: v10
    labels:
      version: v1.0
  - name: v11
    labels:
      version: v1.1

[root@k8s-uat-manager ~]# kubectl exec -it sleep-69cfb4968f-2k674 -- sh
 while true;do curl http://proxy;sleep 0.001;done